Hydeaulic motoe



(No Model.) 2 Sheets-Sheet l.

N. YAGN. HYDRAULIC MOTOR.

Patented Jan, 13, 1885.

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(No Model) 2 Shets-Sheet 2.

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HYDRAULIC MOTOR. No. 310,770. Patented Jan. 13, 1885.

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NICHOLAS YAGN, OF ST. PETERSBURG, RUSSIA.

HYDRAULIC MOTOR.

SPECIFICATION forming part of Letters Patent No. 310,770, dated January 13, 1885.

Application filed March 31, 1864. (No model.) Patented in FrauceIJecember 20, 1883, No. 146,903, and in Germany April 19, 1884, 1\'o.28,798.

To aZZ whom it may concern.-

Be it known that I, NICHOLAS YAGN, a subject of the Czar of Russia, and residing in St. Petersburg, Russia, have invented certain Improvements in Hydraulic Motors, of which the following is a specification.

My present invention consists of improvements in the construction of thehydraulic inotor for which I applied for Letters Patent of the United States June 14, 1883, Serial No. 98,067, and these improvements have reference, principally, to, first, the transmission mechanism, and, second, means for regulating the positions of the parachute-ropes in the Water.

In the accompanying drawings, Figure 1, Sheet 1, is a vertical section of my improved transmission mechanism for the parachuteropes. Fig. 2 is a horizontal section of the same. Fig. 3 is a plan view, partly in section, of two levers carrying the pressure-rollers. Fig. 4. is a view of the kind of rope I prefer to use. Fig. 5, Sheet 2, is a side view, and Fig. 6 a plan view,of the complete apparatus.

The main feature of improvement in the transmitting mechanism consists in providing, in place of the two drums of my former apparatus, a single drum, around which the ropes are wound rather more than half the circumference, in-combination with pressing-rollers securing a sufficient adherence of the ropes to the drum for transmitting the motion of the ropes. This drum A may be made of wood, cast-iron, or some other convenient material; but, by preference, the outside surface of the drum is of wood, in order to insure greater adherence of the parachute-ropes thereto. The drum is provided at bothends with toothed wheels B B, which gear with the pinions O O, and thus transmit the rotary motion of the drum A with increased speed. The parachuteropes P (for simplifying the drawings, the parachutes or buckets are not indicated on Sheet 1) wind around the drum, entering in the corresponding grooves, a, which serve to guide them. Alittle ahead of the point where the upper part of the rope P places itself on the drum, this part of the rope is pressed against the surface thereof by means of a roller, D, provided at its circumference with some elastic matcrial-such as leather or india-rubber pads. The rollersD are set on levers E, turning on the axle F, which has bearings in two fixed supports, G G. Each of the levers E, at its free end, is provided with a weight, H, suspended from the corresponding lever by means of a spring, h, Fig. 1, in order to facilitate an easy passage of the parachute between the roller D and the drum A. Experiments have proved that for securing the adherence of the rope to the drum a pressure of the roller D equal to one-eighth of the force of traction acting on the tight (lower) part of the rope is sufficient when the rope embraces alittle more than half the circumference of the drum. Combined with this mechanism, one can employ either simply twisted ropes or bands composed of several ropes twisted in opposite directions and sewed together, as shown in Fig. 4., or plaited ropes.

Another feature of my invention consists in the application of guidepulleys I I to the slack parts of both ropes P, Figs. 5 and 6. These pulleys, fixed in a certain position by means of an anchor, J, and the float K, prevent every 7 5 possibility of thetwo parts of each rope P (the working and slack parts) becoming entangled.

Another improvement consists in the manner of regulating the angle formed by the two ropes P P of the hydromotor.

By calculation and experience it was proved that the action of the hydromotor depends 011 the position of the parachute-ropes in relation to the direction of the current. Thus, when the directions of the ropes and the current 00- 8 5 incide, the tension of the working part of the rope is four times less than when the rope forms V with the direction of the current a certain an gle, (depending on the dimensions of the parachutes and the distance between them.) I avail o myself of this fact for regulating the power to be imparted to the transmission mechanism. For this purpose I apply behind the guidepulleys O O (for the outer ends of the loops of the parachute-ropes, and to which the steer 5 ing devices Q are connected) two other pulleys, R It, connected with each other by an endless cord, S. Another cord, T, tied to the endless cord S, between the pulleys BB, is led into the vessel or building to the engineers 10o room. When the cord T is pulled, the ends of the rope I? will approach each other, so as to permit bringing them in one line with the current,which is very useful when the hydro-' motors action is to be stopped.

I claim as my invention- 1. The combination of the endless parachuteropes of a hydraulic motor with a frame and grooved drum, A, over which the said rope passes for more than half its circumference, and weighted pressing-rollers to keep the said rope in position on the drum, substantially as set forth.

2. The combination of aframe, transmissiondrum, and two endless parachute-ropes, with guide-pulleys I I, around which the slack parts of the rope pass, between the drum and the outer ends of the loops, to prevent the entanglement of the ropes, substantially as described.

3. The combination of a frame, transmission- 20 drum, and two endless parachute-ropes, with pulleys O 0, over which the outer'ends of the loops pass, and steering devices, connectingcord S, and a cord, T, by which said connecting cord is controlled, substantially as set 2 5 forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

NIOHO LA S YAGN.

Witnesses:

FREDERICK KAUPE, NICHOLAS TSOHEKALOFF. 

